Data was received in 2015 from 23 Member States and Norway; in 2016, from all 28 Member States plus Norway and Iceland; and in 2017 from 26 Member States.
In 2015 zijn er gegevens ontvangen van 23 lidstaten en Noorwegen; in 2016, van alle 28 lidstaten plus Noorwegen en IJsland; en in 2017 van 26 lidstaten.